Cover for an air filtration device



FIG. 1 is a top perspective view of a cover for an air filtration device of our new design.

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are included for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a cover for an air filtration device, as shown and described herein. 